630245 has 16 divisors (see below), whose sum is σ = 943488. Its totient is φ = 392640.

The previous prime is 630229. The next prime is 630247. The reversal of 630245 is 542036.

It is not a de Polignac number, because 630245 - 2⁴ = 630229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434 + ... + 1203.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2⁶³⁰²⁴⁵ is an apocalyptic number.

It is an amenable number.

630245 is a deficient number, since it is larger than the sum of its proper divisors (313243).

630245 is a wasteful number, since it uses less digits than its factorization.

630245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 630245 is about 793.8797138106. The cubic root of 630245 is about 85.7373000370.

Subtracting from 630245 its reverse (542036), we obtain a square (88209 = 297²).

The spelling of 630245 in words is "six hundred thirty thousand, two hundred forty-five".